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stp
3dm, stp
3ds, 3dm, stp
stl, stp
sldprt, stp
stp, igs
obj, 3dm, stp, igs
obj, stp
3dm, stl, stp, step
stp, x_t
obj, 3ds, 3dm, stl, stp, igs, bip/ksp
stp, igs, bip/ksp